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path: root/drivers/media/video/v4l2-event.c
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Diffstat (limited to 'drivers/media/video/v4l2-event.c')
-rw-r--r--drivers/media/video/v4l2-event.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-event.c b/drivers/media/video/v4l2-event.c
index de74ce07b5e2..69fd343d4774 100644
--- a/drivers/media/video/v4l2-event.c
+++ b/drivers/media/video/v4l2-event.c
@@ -134,15 +134,22 @@ int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event,
if (nonblocking)
return __v4l2_event_dequeue(fh, event);
+ /* Release the vdev lock while waiting */
+ if (fh->vdev->lock)
+ mutex_unlock(fh->vdev->lock);
+
do {
ret = wait_event_interruptible(events->wait,
events->navailable != 0);
if (ret < 0)
- return ret;
+ break;
ret = __v4l2_event_dequeue(fh, event);
} while (ret == -ENOENT);
+ if (fh->vdev->lock)
+ mutex_lock(fh->vdev->lock);
+
return ret;
}
EXPORT_SYMBOL_GPL(v4l2_event_dequeue);